kc3-lang/freetype/src/base/ftgasp.c

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• Hash : 65f85237
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  Date : 2023-01-17T09:18:25
  

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• src/base/ftgasp.c

• /****************************************************************************
   *
   * ftgasp.c
   *
   *   Access of TrueType's `gasp' table (body).
   *
   * Copyright (C) 2007-2023 by
   * David Turner, Robert Wilhelm, and Werner Lemberg.
   *
   * This file is part of the FreeType project, and may only be used,
   * modified, and distributed under the terms of the FreeType project
   * license, LICENSE.TXT.  By continuing to use, modify, or distribute
   * this file you indicate that you have read the license and
   * understand and accept it fully.
   *
   */
  
  
  #include <freetype/ftgasp.h>
  #include <freetype/internal/tttypes.h>
  
  
    FT_EXPORT_DEF( FT_Int )
    FT_Get_Gasp( FT_Face  face,
                 FT_UInt  ppem )
    {
      FT_Int  result = FT_GASP_NO_TABLE;
  
  
      if ( face && FT_IS_SFNT( face ) )
      {
        TT_Face  ttface = (TT_Face)face;
  
  
        if ( ttface->gasp.numRanges > 0 )
        {
          TT_GaspRange  range     = ttface->gasp.gaspRanges;
          TT_GaspRange  range_end = range + ttface->gasp.numRanges;
  
  
          while ( ppem > range->maxPPEM )
          {
            range++;
            if ( range >= range_end )
              goto Exit;
          }
  
          result = range->gaspFlag;
  
          /* ensure that we don't have spurious bits */
          if ( ttface->gasp.version == 0 )
            result &= 3;
        }
      }
    Exit:
      return result;
    }
  
  
  /* END */
  

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